Tensions rise when the boys struggle to complete their government project on time and Sheldon tries an energy drink to stay awake. Also, Penny and Amy go to a "party" at Bert the geologist's house, and Kooothrappali learns Bernadette's true feelings about her pregnancy when they clean out the future baby room.
Trailer
Guest Cast
Cast Appearances
Kaley Cuoco
as Penny
Episode Discussion
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